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Decompilation of The Legend of Zelda: Twilight Princess

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Decompilation of The Legend of Zelda: Twilight Princess

The Legend of Zelda: Twilight Princess

A work-in-progress decompilation of The Legend of Zelda: Twilight Princess.

The code for the GameCube releases is completely matching. However, not every Translation Unit (TU) has been linked yet. Work is continuing by aligning the Debug version and getting the Wii versions to match. All versions are built from the same codebase using conditional compilation.

[!IMPORTANT] This repository does not contain any game assets or assembly whatsoever. An existing copy of the game is required.

This project itself is not, and will not, produce a port, to PC or any other platform. It is a decompilation of the original game code, which can be compiled back into a binary identical to the original.

The project can target the following supported versions:

GZ2E01: GameCube - North America
GZ2P01: GameCube - Europe/Australia
GZ2J01: GameCube - Japan
RZDE01_00: Wii - North America (Rev 0)
RZDE01_02: Wii - North America (Rev 2)
RZDP01: Wii - Europe/Australia
RZDJ01: Wii - Japan
DZDE01: Wii - North America (Kiosk Demo)
Shield: Nvidia Shield - China
ShieldD: Nvidia Shield - China (Debug Version)

More information about the project can be found here: https://zsrtp.link

Progress
Dependencies
Building
Diffing
Contributing
FAQ

Dependencies

You will need the following dependencies:

git
ninja
python3
clang-format (optional)

Windows

On Windows, it's highly recommended to use native tooling. WSL or msys2 are not required.
When running under WSL, objdiff is unable to get filesystem notifications for automatic rebuilds.

Install Python and add it to %PATH%.
- Also available from the Windows Store.
Download ninja and add it to %PATH%.
- Quick install via pip: pip install ninja

macOS

Install ninja:
bash
```
brew install ninja
```

wibo, a minimal 32-bit Windows binary wrapper, will be automatically downloaded and used.

Linux

Install ninja.

wibo, a minimal 32-bit Windows binary wrapper, will be automatically downloaded and used.

Building

Clone the repository:

bash

git clone https://github.com/zeldaret/tp.git

Copy your game's disc image to orig/GZ2E01.
- Supported formats: ISO (GCM), RVZ, WIA, WBFS, CISO, NFS, GCZ, TGC.
- After the initial build, the disc image can be deleted to save space.
Configure:
bash
```
python configure.py
```
To use a version other than GZ2E01 (GCN USA), specify it with --version.
Build:
bash
```
ninja
```

Diffing

Once the initial build succeeds, an objdiff.json should exist in the project root.

Download the latest release from encounter/objdiff. Under project settings, set Project directory. The configuration should be loaded automatically.

Select an object from the left sidebar to begin diffing. Changes to the project will rebuild automatically: changes to source files, headers, configure.py, splits.txt or symbols.txt.

Contributing

If you've got all the requirements set up and want to learn how to contribute to the decompilation effort, join our Discord server and check out our contribution guide.